# HG changeset patch
# User Augie Fackler <augie@google.com>
# Date 1422044344 18000
# Node ID fefa5f2a1730acac2300e1af756cc913270eb0ca
# Parent  164bd5218ddb6381366d5ce849c9cea4ee431e6f
parsers: fix leak of err when asciilower hits a unicode decode error

This is one of many errors detected in parsers.c by cpychecker[1]. I
haven't gone through all of them yet.

1: https://gcc-python-plugin.readthedocs.org/en/latest/index.html

diff --git a/mercurial/parsers.c b/mercurial/parsers.c
--- a/mercurial/parsers.c
+++ b/mercurial/parsers.c
@@ -115,6 +115,7 @@
 				"ascii", str, len, i, (i + 1),
 				"unexpected code byte");
 			PyErr_SetObject(PyExc_UnicodeDecodeError, err);
+			Py_XDECREF(err);
 			goto quit;
 		}
 		newstr[i] = lowertable[(unsigned char)c];